Ion Transport in Nanochannels Fabricated by DNA Combing and Imprinting

Nanochannels can precisely manipulate liquids and molecules by providing extremely high levels of spatial confinement and have consequently received a great deal of interest in recent years for both fundamental research and practical applications. We have developed a novel and facile affordable method to fabricate the polymeric nanochannels with the controllable diameter ranging from 10nm to 250nm. Recently, we found that ion conductance is strongly dependent on the size of the channel. The ion transport behavior in the nanochannel is dramatically different from that in the bulk solution. In this study, we will discuss ion transport mechanism in detail occurring at such tiny channels.